SV-45063r1: Ability to install new versions of Internet Explorer automatically must be disallowed. | Microsoft Internet Explorer 10 Security Technical Implementation Guide

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Assessment Title

Rule Text

Ability to install new versions of Internet Explorer automatically must be disallowed.

Description

Discussion Text

This policy setting configures Internet Explorer to automatically install new versions of Internet Explorer when they are available. If you enable this policy setting, automatic upgrade of Internet Explorer will be turned on. If you disable this policy setting, automatic upgrade of Internet Explorer will be turned off. If you do not configure this policy, users can turn on or off automatic updates.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

Additional Details

Responsibility

System Administrator

IA Controls

ECSC-1

References

DPMS Target IE Version 10 DISA DPMS Target IE Version 10 2351

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.fso.ie:def:397
# Ability to install new versions of Internet Explorer automatically must be disallowed.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Computer Configuration\Administrative Templates\Windows Components\Internet Explorer\Install new versions of Internet Explorer automatically" 
# registry_object (registry_test)
function test_1 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Main').GetValueKind('EnableAutoUpgrade').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'EnableAutoUpgrade' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'EnableAutoUpgrade') -eq '0'))
}

if (-not (test_1)) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_ie10 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.ie:def:397
$compliant = Test-Path -Path "HKLM:\Software\Policies\Microsoft\Internet Explorer\Main" -and ((Get-ItemProperty -Path "HKLM:\Software\Policies\Microsoft\Internet Explorer\Main" -Name EnableAutoUpgrade -ErrorAction SilentlyContinue).EnableAutoUpgrade -eq 0)
if ($compliant) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer "Install new versions of Internet Explorer automatically" to "Disabled".